Examlex
Which of the following phenomena is probably not related to the presence of a supermassive black hole?
Bed
A piece of furniture typically used for sleeping and resting, consisting of a mattress and frame.
Extinction
In behavioral psychology, the gradual weakening and eventual disappearance of a conditioned response when the conditioned stimulus is no longer paired with the unconditioned stimulus.
Conditioned Stimulus
An initially impartial stimulus which, upon association with an unconditioned stimulus, gradually brings about a conditioned response.
Unconditioned Stimulus
A stimulus that naturally triggers a reflexive response without the need for prior learning.
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